CA2033547A1 - Patella track cutter and guide - Google Patents
Patella track cutter and guideInfo
- Publication number
- CA2033547A1 CA2033547A1 CA002033547A CA2033547A CA2033547A1 CA 2033547 A1 CA2033547 A1 CA 2033547A1 CA 002033547 A CA002033547 A CA 002033547A CA 2033547 A CA2033547 A CA 2033547A CA 2033547 A1 CA2033547 A1 CA 2033547A1
- Authority
- CA
- Canada
- Prior art keywords
- track
- cutting
- femur
- distal
- resected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
- A61B17/154—Guides therefor for preparing bone for knee prosthesis
- A61B17/155—Cutting femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/3877—Patellae or trochleae
Abstract
PATELLA TRACK CUTTER AND GUIDE
ABSTRACT
A surgical device for accurately positioning and cutting a patellar groove in a resected distal femur to receive a patellar track portion of a prosthesis, including a guide element adapted to fit over the distal end of a resected femur, having a central opening which exposes the central distal and anterior aspects of the femur, each side of the opening being provided with a track, extending the length of the patella track, and a cutting tool having a cutting surface, preferably convex, adapted to fit into the central opening for the purpose of cutting or abrading a groove into the femur as the tool is moved along the opening.
The tool, which is preferably a rotary cutter provided with independently rotatable track-engaging surfaces on each side of the opening is adapted to engage and move along the track.
ABSTRACT
A surgical device for accurately positioning and cutting a patellar groove in a resected distal femur to receive a patellar track portion of a prosthesis, including a guide element adapted to fit over the distal end of a resected femur, having a central opening which exposes the central distal and anterior aspects of the femur, each side of the opening being provided with a track, extending the length of the patella track, and a cutting tool having a cutting surface, preferably convex, adapted to fit into the central opening for the purpose of cutting or abrading a groove into the femur as the tool is moved along the opening.
The tool, which is preferably a rotary cutter provided with independently rotatable track-engaging surfaces on each side of the opening is adapted to engage and move along the track.
Description
~33~yi) PATELLA TRACK CUTTER AND GUIDE
This invention relates to surgical device for use by orthopedic surgeons useful in the implantation of distal femoral knee prostheses, particularly in cases where a patellar prosthesis is implanted.
Surgical instruments for various bone shaping or resection operations required for implantation of prosthetic devices have been devised to assist orthopedic surgeons in accurately performing the necessary cutting steps. One example is the apparatus described in Kaufman and Whiteside .S. Patent No. 4,721,104. In that patent, a femoral shaping apparatus is described which employs a template having a straight slot therein for cutting a relatively deep recess for an intercondylar stabilizing housing of a knee implant.
The patent, however, does not disclose a cutting guide having a curved track useful for forming a groove to accommodate a patellar track on such a prosthesis.
Heretofore, it has been common practice for a surgeon to form a patellar track groove in a resected distal femur, if required, due to the nature of the particular knee prosthesis being implanted, by use of various cutting or abrading tools or instruments without aid of any type of locating or guiding instrument. In design and seating of a prosthesis it is important to retain the original patella/femoral joint line to avoid placing undue stress on the patella and its connecti~e tissues. A need has existed for an improved system for accurate placement and cutting of a groove to accomodate a patellar track portion of a prosthesis to insure accurate seating of the prosthesis for long term wear and stability of a patellar prosthesis. The :, :~ '' ` , , -.
~3~ ~
This invention relates to surgical device for use by orthopedic surgeons useful in the implantation of distal femoral knee prostheses, particularly in cases where a patellar prosthesis is implanted.
Surgical instruments for various bone shaping or resection operations required for implantation of prosthetic devices have been devised to assist orthopedic surgeons in accurately performing the necessary cutting steps. One example is the apparatus described in Kaufman and Whiteside .S. Patent No. 4,721,104. In that patent, a femoral shaping apparatus is described which employs a template having a straight slot therein for cutting a relatively deep recess for an intercondylar stabilizing housing of a knee implant.
The patent, however, does not disclose a cutting guide having a curved track useful for forming a groove to accommodate a patellar track on such a prosthesis.
Heretofore, it has been common practice for a surgeon to form a patellar track groove in a resected distal femur, if required, due to the nature of the particular knee prosthesis being implanted, by use of various cutting or abrading tools or instruments without aid of any type of locating or guiding instrument. In design and seating of a prosthesis it is important to retain the original patella/femoral joint line to avoid placing undue stress on the patella and its connecti~e tissues. A need has existed for an improved system for accurate placement and cutting of a groove to accomodate a patellar track portion of a prosthesis to insure accurate seating of the prosthesis for long term wear and stability of a patellar prosthesis. The :, :~ '' ` , , -.
~3~ ~
present invention relates to a device intended to ~ill this need.
More particularly, the invention relates to a surgical ~evice ~or accurately positioning and cutting a patellar groove in a resected distal femur including in combination a generally U-shaped guide element which is adapted to fit over the distal end of a resected femur and over the anterior and posterior surfaces thereof and a cutting tool adapted to move along an elongated continuous central opening in the guide element to cut an indentation to receive a patellar track along the central distal and anterior aspects of the resected femur. The anterior and distal surfaces of the guide element are provided with a pair of curved parallel tracks, one on each side of the central opening. Tha tracks extend at least the length of the patella groove to be cut and provide means to guide a cutting tool. Such a cutting tool may either be hand operated or may be of a rotary or other power driven type. The present invention, in a further embodiment, provides an improved rotary cutting tool for use in conjunction with a guide element. In any event, such a cutting tool is provided with a cutting surface, usually convex shaped, adapted to fit into the central opening of the guide for the purpose of cutting or abrading a patella groove into said femur. Such a tool is also provided with a track-engaging surfaces spaced apart to span the opening. Each of the track engaging surfaces is adapte~ to engage and move along one of said tracks, thus allowing the cutting tool to be guided accurately along the desired portion of the resected femur. An important advantage of the invention resides in the ability to accurately control the depth o~ the patellar track channel.
' ' ' ~3 The invention will be further explained with reference to the following detailed description and drawings wherein:
FIGURE 1 is a perspective view of a cutting guide of this invention adapted to fit over the distal end of a resected femur, FIGURE 2 is a side view illustrating the use of the guide of this invention in place on a femur in conjunction with a cutting tool, FIGURE 3 is a cross-sectional view of cutting guide 10 of FIGURE 1 taken along line 3-3 of FIGURE 2, FIGURE 4 is a cross-sectional view of the cutting tool shown in FIGURE 2 taken along line 4-4, FIGURE 5 is a side view of an alternative cutting tool which may be power driven that may be employed in conjunction with the cutting guide of this invention, FIGURE 6 is a cross-sectional view of a further embodiment of the invention taken along a cross-section similar to that of FIGURE 3, FIGURE 7 is a cross-sectional view of a still further embodiment of the invention also taken along a cross-section similar to that of FIGURE 3, and FIGURE 8 is a side view of a further embodiment of a power driven rotary cutter for use in combination with a guide according to the invention, with parts shown in cross-section.
Referring more particularly to the drawings, there is seen in FIGURE 1 a cuttin~ guide element 10 of generally U-shaped configuration having a section 12 adapted to fit over the distal end of a resected femur 11 as shown in FIGURE
2. End 14 is adapted to fit on the posterior side of the resected femur and consists of 2 arms adapted to fit over the medial and lateral condyles of the femur. The anterior side .. . . . . .
rl of the cutting guide device consists of ends 16 and 18 which are a continuation of the distal surface contacting portion 12 and are adapted to closely fit over the anterior side of the resected femur as indicated in FIGURE 2. Channels 20 and 21 are cut or sunk into the central edges of portion 16 and 18 of the device to form a curved track in which the cutting device can be moved during the course of cutting procedures.
The central portion of the cutting guide 10 consists of an elongated opening 23 which exposes at least the distal and anterior aspects of the resected femur so that a patellar groove may be cut therein. Connecting members 22 and 24 serve to connect the device together into an integral structure. The distal surfaces of the connecting members may also be curved as illustrated with element 24 to provide room for the cutting tool during use.
Holes 25 and 26 are preferably formed in the distal surface portion of the guide member in order to provide a means for securing the guide to the resected femur. These holes can be used to accurately drill holes into the femur for the purpose of installing anchoring pins to fix the guide to the femur. These holes are preferably positioned so that they will receive anchoring pegs on the actual implant.
As best seen in FIGURE Z a hand-operated cutting tool 30 may be employed in conjunction with cutting guide lO.
Tool 30 i~ provided with a generall~ convex-shaped cutting portion 32, the cross-section of which is seen in FIGURE 4.
A series of cutting teeth 34 are positioned along the length of cutting surface 32. The edges of surface 32 are provided with ledges 40 and 42 along the entire length thereof.
Ledges 40 and 42 act as trac~-engaging means so that the cutting tool 10 can be moved along a desired central course to cause resection of a patellar channel in the distal and anterior sur~aces of femur 11. With the embodiment of FIGURE
; , - ~ . ~ . . .
~3~7 2, the surgeon can by hand reciprocate cutting tool 30 in guide lO using handles 36 and 38.
In the embodiment of FIGURE 5, an alternative cutting tool 60 is employed which is provided with an annular convex-shaped cutting surface 61. Surface 61 is provided with a series of cutting teeth 62 around the circumference thereof for purposes of resection of femur 11. Shoulders 64 and 66 are provided on opposite ends of the cutting surface so that the cutting tool 60 can be moved along cutting guide tracks 20 and 21. Shaft 63 is provided so that tool 60 can be driven by a conventional rotary power tool (not shown) so that it rotates as indicated by arrow 68.
FIGURES ~ and 7 represent alternative embodiments of track configurations with appropriately modified track engaging surfaces on the cutting tool. Firstly, in FIGURE 6 there is seen a modified cutting guide element 110 having anterior arms 114 and distal elements 116 and 118, the surfaces of which, ad~oining the central opening therebetween, are provided with raised rail track members 120 and 122. As also seen in FIGURE 6, the cutter 130 is provided with track engaging grooves 140 and 142 which are adapted to engage the raised rail track elements and guide cutter 130 in an appropriate path to form a resected patellar groove.
FIGURE 7 shows in analogous fashion a revised embodiment in which channels 220 and 222 form the track means in the distal sur~aces 216 and 218 of guide element 210. In this configuration, the track engaging portions 240 and 242 of cutting tool 230 comprised track enga~ing projections on the flanges provided on each side of the cutting surface 232.
In other respects, the embodiments of FIGURE 6 and 7 have other components analogous to those shown in Figs. 1 through 5.
~33~7 FIGURE 8 shows a preferred embodiment of a rotary cutter for use in connection with the combination of the present invention. In that embodiment that cutting element is power driven while the track engaging surfaces are free to rotate separately therefrom. A handle 72 is rotatably affixed to one end o power driven shaft 74, for example, by a screw 70. Handle 72 may be formed from polytetrafluoro-ethylene or other low friction materials. A cutter 80 provided with cutting teeth 81 is affixed to shaft 74 by means of set screw 78. On each side of the cutting element 80 is an indentation or race 77 containing ball bearings which allow guide track engaging discs 75 and 76 to rotate separately from shaft 74. Appropriate mechanical connectors such as snap ring 79, which may fit into a groove on shaft 74, are utilized to hold the cutter in position on the shaft.
The power drive end shaft 74 is provided with an appropriate connector to permit attachment to a rotary power driving device. For example, end 82 may be a "Hudson (R)" end which attaches to a power reamer drive.
The ball bearings as shown in races 77 may be replaced, for example, by polytetrafluoroethylene washers or other low friction washers such as ultra high molecular weight polyethylene or nylon or the like.
It has been found that due to the fact that washers 7S and 76 are free wheeling from power shaft 74, the cutter ~0 will not jump out of the track if the shaft is inadvertently twisted. Forcible pulling of the cutter along the track and excessive wear of the track is also obviated by this preferred embodiment.
In practicing the present invention, a surgeon would follow normal procedures for resection of the distal femur which would be resected to a size adapted to fit the dimensions of the particular guide unit 10 being employed.
, .
~'.
-7- 2 ~ 3 ~
In general, the surgeon can observe a remaining part of the original patellar track between the resected condyles and can center the guide element 10 on such track. In the event that the track is not sufficiently observable after resection, the surgeon would center the guide 10 on the posterior condyles themselves. The guide element 10 would generally be provided to the ~urgeon in a number of separa~e sizes which would match the corresponding implant sizes provided to the surgeon. Resection of a groove by the cutting tool to the depth permitted by the guide will ensure a proper depth and placement of the newly formed patellar track.
While a number of embodiments of the invention have been disclosed herein, further revisions and alternative embodiments falling within the scope and spirit of the appendant claims will be apparent to those skilled in the art.
More particularly, the invention relates to a surgical ~evice ~or accurately positioning and cutting a patellar groove in a resected distal femur including in combination a generally U-shaped guide element which is adapted to fit over the distal end of a resected femur and over the anterior and posterior surfaces thereof and a cutting tool adapted to move along an elongated continuous central opening in the guide element to cut an indentation to receive a patellar track along the central distal and anterior aspects of the resected femur. The anterior and distal surfaces of the guide element are provided with a pair of curved parallel tracks, one on each side of the central opening. Tha tracks extend at least the length of the patella groove to be cut and provide means to guide a cutting tool. Such a cutting tool may either be hand operated or may be of a rotary or other power driven type. The present invention, in a further embodiment, provides an improved rotary cutting tool for use in conjunction with a guide element. In any event, such a cutting tool is provided with a cutting surface, usually convex shaped, adapted to fit into the central opening of the guide for the purpose of cutting or abrading a patella groove into said femur. Such a tool is also provided with a track-engaging surfaces spaced apart to span the opening. Each of the track engaging surfaces is adapte~ to engage and move along one of said tracks, thus allowing the cutting tool to be guided accurately along the desired portion of the resected femur. An important advantage of the invention resides in the ability to accurately control the depth o~ the patellar track channel.
' ' ' ~3 The invention will be further explained with reference to the following detailed description and drawings wherein:
FIGURE 1 is a perspective view of a cutting guide of this invention adapted to fit over the distal end of a resected femur, FIGURE 2 is a side view illustrating the use of the guide of this invention in place on a femur in conjunction with a cutting tool, FIGURE 3 is a cross-sectional view of cutting guide 10 of FIGURE 1 taken along line 3-3 of FIGURE 2, FIGURE 4 is a cross-sectional view of the cutting tool shown in FIGURE 2 taken along line 4-4, FIGURE 5 is a side view of an alternative cutting tool which may be power driven that may be employed in conjunction with the cutting guide of this invention, FIGURE 6 is a cross-sectional view of a further embodiment of the invention taken along a cross-section similar to that of FIGURE 3, FIGURE 7 is a cross-sectional view of a still further embodiment of the invention also taken along a cross-section similar to that of FIGURE 3, and FIGURE 8 is a side view of a further embodiment of a power driven rotary cutter for use in combination with a guide according to the invention, with parts shown in cross-section.
Referring more particularly to the drawings, there is seen in FIGURE 1 a cuttin~ guide element 10 of generally U-shaped configuration having a section 12 adapted to fit over the distal end of a resected femur 11 as shown in FIGURE
2. End 14 is adapted to fit on the posterior side of the resected femur and consists of 2 arms adapted to fit over the medial and lateral condyles of the femur. The anterior side .. . . . . .
rl of the cutting guide device consists of ends 16 and 18 which are a continuation of the distal surface contacting portion 12 and are adapted to closely fit over the anterior side of the resected femur as indicated in FIGURE 2. Channels 20 and 21 are cut or sunk into the central edges of portion 16 and 18 of the device to form a curved track in which the cutting device can be moved during the course of cutting procedures.
The central portion of the cutting guide 10 consists of an elongated opening 23 which exposes at least the distal and anterior aspects of the resected femur so that a patellar groove may be cut therein. Connecting members 22 and 24 serve to connect the device together into an integral structure. The distal surfaces of the connecting members may also be curved as illustrated with element 24 to provide room for the cutting tool during use.
Holes 25 and 26 are preferably formed in the distal surface portion of the guide member in order to provide a means for securing the guide to the resected femur. These holes can be used to accurately drill holes into the femur for the purpose of installing anchoring pins to fix the guide to the femur. These holes are preferably positioned so that they will receive anchoring pegs on the actual implant.
As best seen in FIGURE Z a hand-operated cutting tool 30 may be employed in conjunction with cutting guide lO.
Tool 30 i~ provided with a generall~ convex-shaped cutting portion 32, the cross-section of which is seen in FIGURE 4.
A series of cutting teeth 34 are positioned along the length of cutting surface 32. The edges of surface 32 are provided with ledges 40 and 42 along the entire length thereof.
Ledges 40 and 42 act as trac~-engaging means so that the cutting tool 10 can be moved along a desired central course to cause resection of a patellar channel in the distal and anterior sur~aces of femur 11. With the embodiment of FIGURE
; , - ~ . ~ . . .
~3~7 2, the surgeon can by hand reciprocate cutting tool 30 in guide lO using handles 36 and 38.
In the embodiment of FIGURE 5, an alternative cutting tool 60 is employed which is provided with an annular convex-shaped cutting surface 61. Surface 61 is provided with a series of cutting teeth 62 around the circumference thereof for purposes of resection of femur 11. Shoulders 64 and 66 are provided on opposite ends of the cutting surface so that the cutting tool 60 can be moved along cutting guide tracks 20 and 21. Shaft 63 is provided so that tool 60 can be driven by a conventional rotary power tool (not shown) so that it rotates as indicated by arrow 68.
FIGURES ~ and 7 represent alternative embodiments of track configurations with appropriately modified track engaging surfaces on the cutting tool. Firstly, in FIGURE 6 there is seen a modified cutting guide element 110 having anterior arms 114 and distal elements 116 and 118, the surfaces of which, ad~oining the central opening therebetween, are provided with raised rail track members 120 and 122. As also seen in FIGURE 6, the cutter 130 is provided with track engaging grooves 140 and 142 which are adapted to engage the raised rail track elements and guide cutter 130 in an appropriate path to form a resected patellar groove.
FIGURE 7 shows in analogous fashion a revised embodiment in which channels 220 and 222 form the track means in the distal sur~aces 216 and 218 of guide element 210. In this configuration, the track engaging portions 240 and 242 of cutting tool 230 comprised track enga~ing projections on the flanges provided on each side of the cutting surface 232.
In other respects, the embodiments of FIGURE 6 and 7 have other components analogous to those shown in Figs. 1 through 5.
~33~7 FIGURE 8 shows a preferred embodiment of a rotary cutter for use in connection with the combination of the present invention. In that embodiment that cutting element is power driven while the track engaging surfaces are free to rotate separately therefrom. A handle 72 is rotatably affixed to one end o power driven shaft 74, for example, by a screw 70. Handle 72 may be formed from polytetrafluoro-ethylene or other low friction materials. A cutter 80 provided with cutting teeth 81 is affixed to shaft 74 by means of set screw 78. On each side of the cutting element 80 is an indentation or race 77 containing ball bearings which allow guide track engaging discs 75 and 76 to rotate separately from shaft 74. Appropriate mechanical connectors such as snap ring 79, which may fit into a groove on shaft 74, are utilized to hold the cutter in position on the shaft.
The power drive end shaft 74 is provided with an appropriate connector to permit attachment to a rotary power driving device. For example, end 82 may be a "Hudson (R)" end which attaches to a power reamer drive.
The ball bearings as shown in races 77 may be replaced, for example, by polytetrafluoroethylene washers or other low friction washers such as ultra high molecular weight polyethylene or nylon or the like.
It has been found that due to the fact that washers 7S and 76 are free wheeling from power shaft 74, the cutter ~0 will not jump out of the track if the shaft is inadvertently twisted. Forcible pulling of the cutter along the track and excessive wear of the track is also obviated by this preferred embodiment.
In practicing the present invention, a surgeon would follow normal procedures for resection of the distal femur which would be resected to a size adapted to fit the dimensions of the particular guide unit 10 being employed.
, .
~'.
-7- 2 ~ 3 ~
In general, the surgeon can observe a remaining part of the original patellar track between the resected condyles and can center the guide element 10 on such track. In the event that the track is not sufficiently observable after resection, the surgeon would center the guide 10 on the posterior condyles themselves. The guide element 10 would generally be provided to the ~urgeon in a number of separa~e sizes which would match the corresponding implant sizes provided to the surgeon. Resection of a groove by the cutting tool to the depth permitted by the guide will ensure a proper depth and placement of the newly formed patellar track.
While a number of embodiments of the invention have been disclosed herein, further revisions and alternative embodiments falling within the scope and spirit of the appendant claims will be apparent to those skilled in the art.
Claims (5)
1. A surgical device for accurately positioning and cutting a patellar groove in a resected distal femur comprising in combination:
a generally U-shaped guide element adapted to it over the distal end of a resected femur and over the resected anterior and posterior surfaces thereof, there being an elongated continuous central opening in said guide element to expose the central distal and anterior aspects of said resected femur, the anterior and distal surfaces of said element on each side of said opening being provided with a curved track, said tracks being parallel to each other and extending at least the length of the patella track, and a patella cutting tool having a cutting surface adapted to fit into said central opening for the purpose of cutting or abrading a patella track into said femur as said tool is moved along said opening, said tool being provided with a track-engaging surface on each side of said opening, each of which surfaces is adapted to engage and move along one of said tracks.
a generally U-shaped guide element adapted to it over the distal end of a resected femur and over the resected anterior and posterior surfaces thereof, there being an elongated continuous central opening in said guide element to expose the central distal and anterior aspects of said resected femur, the anterior and distal surfaces of said element on each side of said opening being provided with a curved track, said tracks being parallel to each other and extending at least the length of the patella track, and a patella cutting tool having a cutting surface adapted to fit into said central opening for the purpose of cutting or abrading a patella track into said femur as said tool is moved along said opening, said tool being provided with a track-engaging surface on each side of said opening, each of which surfaces is adapted to engage and move along one of said tracks.
2. A device according to claim 1 wherein said tracks comprise elongated channels cut into the surfaces of said U-shaped member adjacent to said central opening.
3. A device according to claim 1 wherein said tracks comprise raised rails extending along the surfaces of said guide member adjacent to said central opening.
4. A device according to claim 2 wherein said channels are in the form of ledges extending along the edges of said central opening.
5. A device according to claim 1 wherein the distal surface of the guide element on each side of the central opening is provided with a hole suited for attachment of the guide element to the resected distal bone surface by means of bone screws or nails and said holes are positioned to coincide with the position of attachment pegs located on the femoral prosthesis being attached to said resected femur.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US462,268 | 1990-01-09 | ||
| US07/462,268 US5035699A (en) | 1990-01-09 | 1990-01-09 | Patella track cutter and guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2033547A1 true CA2033547A1 (en) | 1991-07-10 |
Family
ID=23835823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002033547A Abandoned CA2033547A1 (en) | 1990-01-09 | 1991-01-03 | Patella track cutter and guide |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5035699A (en) |
| EP (1) | EP0441059B1 (en) |
| JP (1) | JP3259965B2 (en) |
| CA (1) | CA2033547A1 (en) |
| DE (1) | DE69022973T2 (en) |
| ES (1) | ES2077654T3 (en) |
Families Citing this family (77)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100409A (en) * | 1991-03-07 | 1992-03-31 | Dow Corning Wright Corporation | Shaping and trial reduction guide for implantation of femoral prosthesis and method of using same |
| US5098436A (en) * | 1991-03-07 | 1992-03-24 | Dow Corning Wright Corporation | Modular guide for shaping of femur to accommodate intercondylar stabilizing housing and patellar track of implant |
| US5344423A (en) * | 1992-02-06 | 1994-09-06 | Zimmer, Inc. | Apparatus and method for milling bone |
| US5176684A (en) * | 1992-02-20 | 1993-01-05 | Dow Corning Wright | Modular shaping and trial reduction guide for implantation of posterior-stabilized femoral prosthesis and method of using same |
| US5207680A (en) * | 1992-05-11 | 1993-05-04 | Zimmer, Inc. | Front milling guide for use in orthopaedic surgery |
| EP0645992B1 (en) * | 1992-06-17 | 1998-03-04 | Minnesota Mining And Manufacturing Company | Instrumentation for preparing the femur for an artificial knee implant and for positioning the femoral component of the implant |
| US5702485A (en) * | 1992-11-20 | 1997-12-30 | Burke; Dennis W. | Collared prosthetic device with centering fins |
| CA2149916C (en) * | 1992-11-20 | 2004-10-26 | Dennis W. Burke | Prosthetic implant collar |
| US5951606A (en) | 1992-11-20 | 1999-09-14 | Burke; Dennis W. | Centering device for femoral implant and method and apparatus for implementation thereof |
| CA2126627C (en) * | 1993-07-06 | 2005-01-25 | Kim C. Bertin | Femoral milling instrumentation for use in total knee arthroplasty with optional cutting guide attachment |
| US5474559A (en) * | 1993-07-06 | 1995-12-12 | Zimmer, Inc. | Femoral milling instrumentation for use in total knee arthroplasty with optional cutting guide attachment |
| US5616146A (en) * | 1994-05-16 | 1997-04-01 | Murray; William M. | Method and apparatus for machining bone to fit an orthopedic surgical implant |
| US5908424A (en) * | 1994-05-16 | 1999-06-01 | Zimmer, Inc, By Said Stalcup, Dietz, Bays And Vanlaningham | Tibial milling guide system |
| ES2149992T3 (en) * | 1994-06-02 | 2000-11-16 | Sulzer Orthopedics Inc | INSTRUMENT USED TO PERFORM AN INTERCONDILIAN CUT FOR A STABILIZED REAR FEMORAL KNEE PROSTHESIS. |
| US6695848B2 (en) | 1994-09-02 | 2004-02-24 | Hudson Surgical Design, Inc. | Methods for femoral and tibial resection |
| US5593411A (en) * | 1995-03-13 | 1997-01-14 | Zimmer, Inc. | Orthopaedic milling guide for milling intersecting planes |
| US5601563A (en) * | 1995-08-25 | 1997-02-11 | Zimmer, Inc. | Orthopaedic milling template with attachable cutting guide |
| US5658293A (en) * | 1995-10-10 | 1997-08-19 | Zimmer, Inc. | Guide platform associated with intramedullary rod |
| FR2741254B1 (en) * | 1995-11-22 | 1998-01-23 | Cedior | FEMORAL CUTTING DEVICE FOR LAYING A FEMOROPATAL PROSTHESIS |
| US5653714A (en) * | 1996-02-22 | 1997-08-05 | Zimmer, Inc. | Dual slide cutting guide |
| US5718717A (en) | 1996-08-19 | 1998-02-17 | Bonutti; Peter M. | Suture anchor |
| US5916221A (en) * | 1997-09-17 | 1999-06-29 | Bristol-Myers Squibb Company | Notch/chamfer guide |
| US6045551A (en) | 1998-02-06 | 2000-04-04 | Bonutti; Peter M. | Bone suture |
| US6368343B1 (en) | 2000-03-13 | 2002-04-09 | Peter M. Bonutti | Method of using ultrasonic vibration to secure body tissue |
| US6447516B1 (en) | 1999-08-09 | 2002-09-10 | Peter M. Bonutti | Method of securing tissue |
| US6702821B2 (en) | 2000-01-14 | 2004-03-09 | The Bonutti 2003 Trust A | Instrumentation for minimally invasive joint replacement and methods for using same |
| US7635390B1 (en) | 2000-01-14 | 2009-12-22 | Marctec, Llc | Joint replacement component having a modular articulating surface |
| US7104996B2 (en) | 2000-01-14 | 2006-09-12 | Marctec. Llc | Method of performing surgery |
| US6635073B2 (en) | 2000-05-03 | 2003-10-21 | Peter M. Bonutti | Method of securing body tissue |
| US8062377B2 (en) | 2001-03-05 | 2011-11-22 | Hudson Surgical Design, Inc. | Methods and apparatus for knee arthroplasty |
| US7708741B1 (en) | 2001-08-28 | 2010-05-04 | Marctec, Llc | Method of preparing bones for knee replacement surgery |
| US6719765B2 (en) | 2001-12-03 | 2004-04-13 | Bonutti 2003 Trust-A | Magnetic suturing system and method |
| US8801720B2 (en) | 2002-05-15 | 2014-08-12 | Otismed Corporation | Total joint arthroplasty system |
| US7922772B2 (en) * | 2002-05-24 | 2011-04-12 | Zimmer, Inc. | Implants and related methods and apparatus for securing an implant on an articulating surface of an orthopedic joint |
| US7771483B2 (en) * | 2003-12-30 | 2010-08-10 | Zimmer, Inc. | Tibial condylar hemiplasty implants, anchor assemblies, and related methods |
| US20040039395A1 (en) * | 2002-05-24 | 2004-02-26 | Coon Thomas M. | Instruments for knee surgery and method of use |
| US7935118B2 (en) * | 2002-06-21 | 2011-05-03 | Depuy Products, Inc. | Prosthesis removal cutting guide, cutting tool and method |
| US8211113B2 (en) * | 2002-06-21 | 2012-07-03 | Depuy Products, Inc. | Prosthesis cutting guide, cutting tool and method |
| US20030236522A1 (en) * | 2002-06-21 | 2003-12-25 | Jack Long | Prosthesis cavity cutting guide, cutting tool and method |
| ES2465090T3 (en) | 2002-12-20 | 2014-06-05 | Smith & Nephew, Inc. | High performance knee prostheses |
| US20040153066A1 (en) * | 2003-02-03 | 2004-08-05 | Coon Thomas M. | Apparatus for knee surgery and method of use |
| US7722644B2 (en) | 2003-06-11 | 2010-05-25 | Medicine Lodge, Inc. | Compact line locks and methods |
| US7578824B2 (en) * | 2003-12-30 | 2009-08-25 | Zimmer, Inc. | Methods and apparatus for forming a tunnel through a proximal end of a tibia |
| US7867236B2 (en) * | 2003-12-30 | 2011-01-11 | Zimmer, Inc. | Instruments and methods for preparing a joint articulation surface for an implant |
| US7819878B2 (en) * | 2003-12-30 | 2010-10-26 | Zimmer, Inc. | Tibial condylar hemiplasty tissue preparation instruments and methods |
| US8287545B2 (en) | 2004-01-14 | 2012-10-16 | Hudson Surgical Design, Inc. | Methods and apparatus for enhanced retention of prosthetic implants |
| US8157867B2 (en) * | 2004-07-09 | 2012-04-17 | Zimmer, Inc. | Trochlear groove implants and related methods and instruments |
| US7806898B2 (en) | 2004-07-09 | 2010-10-05 | Zimmer, Inc. | Modular guide systems and related rasps and methods for resecting a joint articulation surface |
| US7488347B1 (en) | 2005-01-06 | 2009-02-10 | Medicine Lodge, Inc. | Transosseous graft retention system and method |
| US7641694B1 (en) | 2005-01-06 | 2010-01-05 | IMDS, Inc. | Line lock graft retention system and method |
| AU2006251751B2 (en) * | 2005-05-20 | 2012-09-13 | Smith & Nephew, Inc. | Patello-femoral joint implant and instrumentation |
| US7695477B2 (en) * | 2005-05-26 | 2010-04-13 | Zimmer, Inc. | Milling system and methods for resecting a joint articulation surface |
| US7727239B2 (en) * | 2005-06-10 | 2010-06-01 | Zimmer Technology, Inc. | Milling system with guide paths and related methods for resecting a joint articulation surface |
| US9808262B2 (en) * | 2006-02-15 | 2017-11-07 | Howmedica Osteonics Corporation | Arthroplasty devices and related methods |
| US9017336B2 (en) | 2006-02-15 | 2015-04-28 | Otismed Corporation | Arthroplasty devices and related methods |
| CA2930222A1 (en) | 2006-06-30 | 2008-01-10 | Smith & Nephew, Inc. | Anatomical motion hinged prosthesis |
| US10582934B2 (en) | 2007-11-27 | 2020-03-10 | Howmedica Osteonics Corporation | Generating MRI images usable for the creation of 3D bone models employed to make customized arthroplasty jigs |
| US8160345B2 (en) | 2008-04-30 | 2012-04-17 | Otismed Corporation | System and method for image segmentation in generating computer models of a joint to undergo arthroplasty |
| US8617171B2 (en) | 2007-12-18 | 2013-12-31 | Otismed Corporation | Preoperatively planning an arthroplasty procedure and generating a corresponding patient specific arthroplasty resection guide |
| US8221430B2 (en) | 2007-12-18 | 2012-07-17 | Otismed Corporation | System and method for manufacturing arthroplasty jigs |
| US8545509B2 (en) | 2007-12-18 | 2013-10-01 | Otismed Corporation | Arthroplasty system and related methods |
| US8480679B2 (en) | 2008-04-29 | 2013-07-09 | Otismed Corporation | Generation of a computerized bone model representative of a pre-degenerated state and useable in the design and manufacture of arthroplasty devices |
| US8777875B2 (en) | 2008-07-23 | 2014-07-15 | Otismed Corporation | System and method for manufacturing arthroplasty jigs having improved mating accuracy |
| US9408618B2 (en) | 2008-02-29 | 2016-08-09 | Howmedica Osteonics Corporation | Total hip replacement surgical guide tool |
| US8152846B2 (en) * | 2008-03-06 | 2012-04-10 | Musculoskeletal Transplant Foundation | Instrumentation and method for repair of meniscus tissue |
| US8617175B2 (en) | 2008-12-16 | 2013-12-31 | Otismed Corporation | Unicompartmental customized arthroplasty cutting jigs and methods of making the same |
| US8562608B2 (en) * | 2008-09-19 | 2013-10-22 | Zimmer, Inc. | Patello-femoral milling system |
| US20100222782A1 (en) * | 2009-02-27 | 2010-09-02 | Howmedica Osteonics Corp. | Spot facing trochlear groove |
| US8480753B2 (en) * | 2009-02-27 | 2013-07-09 | Howmedica Osteonics Corp. | Spot facing trochlear groove |
| CA2764002A1 (en) | 2009-05-29 | 2010-12-02 | Smith & Nephew, Inc. | Methods and apparatus for performing knee arthroplasty |
| AU2011289383B2 (en) | 2010-08-12 | 2016-05-26 | Smith & Nephew, Inc. | Structures for use in orthopaedic implant fixation and methods of installation onto a bone |
| US8747410B2 (en) | 2010-10-26 | 2014-06-10 | Zimmer, Inc. | Patellar resection instrument with variable depth guide |
| US8979847B2 (en) | 2011-06-06 | 2015-03-17 | Biomet Manufacturing, Llc | Method and apparatus for implanting a knee prosthesis |
| US9402637B2 (en) | 2012-10-11 | 2016-08-02 | Howmedica Osteonics Corporation | Customized arthroplasty cutting guides and surgical methods using the same |
| CN104955421A (en) | 2012-10-18 | 2015-09-30 | 史密夫和内修有限公司 | Alignment devices and methods |
| US9655727B2 (en) | 2013-12-12 | 2017-05-23 | Stryker Corporation | Extended patellofemoral |
| US20230085332A1 (en) * | 2021-09-13 | 2023-03-16 | Arthrex, Inc | Guide apparatus for surgical cutting tool |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US930477A (en) * | 1908-08-08 | 1909-08-10 | William Henry Hudson | Trephine. |
| GB1100378A (en) * | 1965-07-08 | 1968-01-24 | Zimmer Orthopaedic Ltd | Acetabulum reamer |
| US3633583A (en) * | 1969-08-22 | 1972-01-11 | Meyer Fishbein | Orthopedic single-blade bone cutter |
| GB1277769A (en) * | 1969-11-25 | 1972-06-14 | Chas F Thacyray Ltd | Improvements in or relating to apparatus for use in hip-joint operations |
| CH593674A5 (en) * | 1974-09-11 | 1977-12-15 | Friedrichsfeld Gmbh | |
| DE2714321C3 (en) * | 1977-03-31 | 1980-06-12 | Axel Dr. 7024 Bernhausen Kirsch | Tool for the surgical preparation of the implantation of an implant for the attachment of fixed dentures |
| US4467801A (en) * | 1983-03-09 | 1984-08-28 | Wright Manufacturing Company | Method and apparatus for shaping a proximal tibial surface |
| US4730616A (en) * | 1983-08-12 | 1988-03-15 | Advanced Cardiovascular Systems, Inc. | Multiple probe angioplasty apparatus and method |
| EP0189253A2 (en) * | 1985-01-18 | 1986-07-30 | Pfizer Hospital Products Group, Inc. | Press fit knee prosthesis and instrumentation |
| US4721104A (en) * | 1985-12-02 | 1988-01-26 | Dow Corning Wright Corporation | Femoral surface shaping apparatus for posterior-stabilized knee implants |
| US4719908A (en) * | 1986-08-15 | 1988-01-19 | Osteonics Corp. | Method and apparatus for implanting a prosthetic device |
| CH670198A5 (en) * | 1986-10-02 | 1989-05-31 | Sulzer Ag | |
| DE8711113U1 (en) * | 1987-08-15 | 1987-11-05 | Orthoplant Endoprothetik Gmbh, 2800 Bremen, De | |
| US4926847A (en) * | 1988-12-27 | 1990-05-22 | Johnson & Johnson Orthopaedics, Inc. | Surgical cutting block |
-
1990
- 1990-01-09 US US07/462,268 patent/US5035699A/en not_active Expired - Fee Related
- 1990-12-27 DE DE69022973T patent/DE69022973T2/en not_active Expired - Fee Related
- 1990-12-27 EP EP90314307A patent/EP0441059B1/en not_active Expired - Lifetime
- 1990-12-27 ES ES90314307T patent/ES2077654T3/en not_active Expired - Lifetime
-
1991
- 1991-01-03 CA CA002033547A patent/CA2033547A1/en not_active Abandoned
- 1991-01-08 JP JP00051591A patent/JP3259965B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3259965B2 (en) | 2002-02-25 |
| US5035699A (en) | 1991-07-30 |
| EP0441059A1 (en) | 1991-08-14 |
| DE69022973D1 (en) | 1995-11-16 |
| ES2077654T3 (en) | 1995-12-01 |
| JPH04297254A (en) | 1992-10-21 |
| DE69022973T2 (en) | 1996-05-30 |
| EP0441059B1 (en) | 1995-10-11 |
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| Date | Code | Title | Description |
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| FZDE | Discontinued |